A well-functioning engine is essential for your semi truck’s efficiency and reliability. When engine trouble arises, it can lead to costly repairs, downtime, and lost revenue. By recognizing the early warning signs, you can address issues before they escalate into major problems. At Kaos Truck & Trailer Repair, we provide expert mobile semi truck repair in the greater Las Vegas area. Here are five common signs that your semi truck’s engine may be in trouble. Discolored/Excessive Exhaust Smoke While some exhaust smoke is normal, an unusual amount of smoke—especially if it’s black, blue, or white—can be a red flag. Black smoke typically means the engine is burning too much fuel. Blue smoke suggests oil is leaking, which could point to worn-out piston rings or valve seals. White smoke often signals a coolant leak, which may indicate a blown head gasket. Loss of Power and Performance If your truck starts to lose power during acceleration or struggles to maintain speed on inclines, it could indicate a serious engine issue. This loss of power may be caused by fuel injector trouble or a failing turbocharger. Left unaddressed, these issues can lead to escalating problems. Knocking or Tapping Noises Strange noises coming from the engine, such as knocking, tapping, or grinding, can indicate internal damage. Knocking noises often result from worn-out bearings. Tapping sounds might suggest valve train issues. Ignoring these noises can lead to severe engine problems, so it's important to have the engine inspected by a professional as soon as possible. Engine Overheating An overheating engine is a clear sign of trouble and should never be ignored. Overheating can result from a variety of issues, including a malfunctioning thermostat, a leaking radiator, or a failing water pump. Prolonged overheating can warp engine components, leading to costly repairs. Regularly monitoring the engine temperature gauge and addressing cooling system issues promptly can help prevent further damage. Check Engine Light Illuminates The check engine light is designed to alert you to potential problems within the engine. While it may seem like a minor inconvenience, ignoring the check engine light can lead to more severe issues. The light can be triggered by anything from a loose gas cap to a failing sensor or a more serious engine malfunction. A diagnostic scan can pinpoint the exact issue, allowing for timely repairs and minimizing the risk of breakdowns. Mobile Semi Truck Repair in Southern Nevada When you need mobile semi truck repair in Las Vegas and the surrounding area, contact Kaos Truck & Trailer Repair at  (844) 219-0633  . We’ll show up ASAP to get you back on the road!